有兩個(gè)函數(shù)可以實(shí)現(xiàn),double pow（double x,double y）,double pow10（int p）
下面是這兩個(gè)函數(shù)的使用方法,個(gè)人建議用：pow10(n)
函數(shù)名:pow
功 能:指數(shù)函數(shù)(x的y次方)
用 法:double pow(double x,double y);
程序例:
#include
#include
int main(void)
{
double x = 2.0,y = 3.0;
printf("%lf raised to %lf is %lf\n",x,y,pow(x,y));
return 0;
}
函數(shù)名:pow10
功 能:指數(shù)函數(shù)(10的p次方)
用 法:double pow10(int p);
程序例:
#include
#include
int main(void)
{
double p = 3.0;
printf("Ten raised to %lf is %lf\n",p,pow10(p));
return 0;
}